Cold Forging Manufacturing Processes is a net shape forming process. The
parts formed by this method have high strength and accuracy, and the surface
quality is good. At present, the total amount of cold forging of an ordinary car
abroad is 40~45kg, in which the total number of tooth parts is more than 10kg.
The cold forged gear can reach more than 1kg with a single tooth weight of
The continuous process innovation has promoted the development of cold
extrusion technology. Since 1980s, precision forging experts at home and abroad
have begun to apply the theory of split forging to cold forging of spur wheel
and spiral gear.